Nailor 37S Manual page 134

NAMEPLATE LABEL
Electric coil data are incorporated in the nameplate label,
which is affixed to the control enclosure cover. The label
shows all necessary information required by UL with respect
to electrical power and circuit protection requirements.
HEATER CONTROL ENCLOSURE
Figure 4 shows the interior of a typical heater control
enclosure. All components within this space work together
to provide safe operation of the heater. Although it is not
required to meet NEC requirements, Nailor recommends a
door interlocking disconnect switch. This safety switch
must be disconnected before the enclosure can be opened.
In the absence of a disconnect switch, a terminal block
is provided for single point power connection. A ground
lug ensures the proper grounding of the unit housing and
enclosure. Line fuses and fan motor fuses provide
overcurrent protection, and come as an option. An airflow
switch de-energizes the heater when it detects no airflow
across the elements.
DATE (DATE)
MODEL (MODÈLE)
UNIT SIZE-INLET SIZE
(DIAMETRE D'ENTRÉE)
CONTROL VOLTAGE
(VOLTAGE DE CONTRÔLE)
CONTROL SEQUENCE
(SEQUENCE DE CONTRÔLE)
VOLT AMP (VOLT-AMPÈRE) :
HOT WATER COIL ROWS :
(NOMBRE DE RANGÉES SERPENTIN EAUCAUDE)
TOTAL
(TOTALE)
10.0
HEATER (CHAUFFAGE)
MOTOR (MOTEUR)
TOTAL (TOTALE)
EACH ELEMENT RATED @
(CHAQUE ELEMENT CLASSIFIER A)
USE CLASS K, RK1, A2D OR A6D FUSE OR HACR BREAKERS.
PRIMARY CFM (MAX/MIN)
FAN CFM
Figure 3. Sample Nameplate Label. Fan Powered Terminal Unit
Page 2 of 4
Nailor Industries Inc. reserves the right to change any information concerning product or specification without notice or obligation.
FAN POWERED
TERMINAL UNIT
: 27-Nov-2001
: D35SE
: 4-10
: 24
: NB
50
N/A
KW/HP AMPS
(AMPÈRES)
EACH CIR. EACH STG. TOTAL EACH CIR.
(CHAQUE (CHAQUE (TOTALE) (CHAQUE
CIRCUIT) ÉTAPE) CIRCUIT)
10.0 5.0 12.0 12.0
1/3 2.0
14.0
3.3 KW
USE WIRE SUITABLE FOR AT LEAST 75 C
o
L1 IS COLOR CODED BLACK , L2 IS BLUE, L3 IS RED
CONTROL WIRES CODED AS MARKED
USE COPPER CONDUCTORS ONLY.
: 1000/1000
:
In fan powered VAV terminal units, auto-reset limit
switches in line with each element provide high temperature
protection. A single auto-reset limit switch provides
protection for single duct terminal unit heaters. These
switches automatically cut the heater off when overheating
occurs, and turn the heater back on when the elements have
cooled down. Manual-reset limit switches in line with each
element provide secondary over temperature protection in
single duct terminal units.
A control transformer is provided whenever a 24V circuit
is required. PE switches (when pneumatic controls are
used), like magnetic contactors, are used to energize
stages of electric heat. Small heaters may often use a load
carrying PE switch as the only control component. When
control systems require frequent cycling or silent operation,
mercury contactors are available as an option. An SCR
control will provide fine space temperature control and
highest reliability. For fan-powered terminal units, a fan
relay is provided when required or requested.
(UNITE TERMINALE @
VENTILATEUR INTEGRÉ)
SERIAL NO. (NO. DE SÉRIE) : 150111-2
TAG NO. (NO. DÈTIQUETTE) : FPB-1-35
VOLTAGE (VOLTAGE)
PHASE (PHASE)
STAGES (ÉTAPES)
HZ. (HZ)
MOTOR HP (MOTEUR HP)
MOTOR VOLTAGE
(VOLTAGE DU MOTEUR)
MOTOR AMP
(AMPERAGE DU MOTEUR)
AMPACITY
(AMPACITÉE)
EACH STG. TOTAL EACH CIR. EACH STG.
(CHAQUE (TOTALE) (CHAQUE (CHAQUE
ÉTAPE) CIRCUIT) ÉTAPE)
6.0 15.0 15.0 7.5
2.5
17.5
@ 277 VAC. AWG. MIN WIRE SIZE (MIN DIAMETRE DE FIL) :
MIN. HEATING CFM (MIN. PCM) :
UTILISER UN FIL METALIQUE QUI CONVIENT AU MOIN 75
L1 EST COLORÉ NOIRE, L2 EST BLUE , L3 EST ROUGE,
LES FILS DE CONTRÔLE SON INDENTIFIÉE COMME MARQUE,
UTILISÉ DES CONDUCTEURS DE CUIVRE SEULEMENT.
UTILISÉ DES FUSIBLES CLASS K, RK1, A2D, OU A6D OU HACR DISJONCTEURS.
PRIMARY L/S (MAX/MIN) :
FAN L/S
6/20
: 480
: 3
: 2
: 50/60
: 1/3
: 277
: 2.0
MAX. OVERCURRENT PROTECTION MOTOR FUSE SIZE
(RESISTANCE DES FUSIBLE MAX.) (MOTEUR FUSIBLE)
TOTAL EACH CIR.
(TOTALE) (CHAQUE
CIRCUIT)
20 20 N/A
3 30
23
14
700
C
o
472/472
:
IOM-EHVAV (Supercedes 4/02)